Enable Yakuake ,mc,pavucontrol, htop, unrar, checkgmail
* Yakuake – is a KDE terminal emulator. Its design was inspired from consoles in computer games such as Quake which slide down from the top. I like it.
* mc – GNU Midnight Commander is a visual file manager used in terminal/yakuake.
* Pavucontrol – PulseAudio Volume Control (pavucontrol) is a simple GTK based volume control tool (“mixer”) for the PulseAudio sound server. Skype mic refused to work and I had to use this tool.
* htop – an interactive process viewer for Linux.
* unrar – unpack RAR archives
* checkgmail – says it all. Alerts you when you have mail in your gmail account.

To downgrade from a current version of the packageyum install yum-allowdowngrade

To use it type:

su -c ‘yum update –allow-downgrade’

You can disable this plugin by changing the option enabled in the file:

su -c ‘gedit /etc/yum/pluginconf.d/allowdowngrade.conf’

Wine to run windows appsyum install wine

Developer tools
It allows you to install single package or group of package. For example let us say you are running a web server with PHP+MySQL. Now you need complete development environment i.e gcc C/C++ compilers, subversion cvs, perl and related libraries. You can install them in one shot with the following command: yum groupinstall 'Development Tools'

You can remove all developer tools with the following command:yum groupremove 'Development Tools'